diff --git a/src/hello-world/02.00.UART.md b/src/hello-world/02.00.UART.md
index af9a110..b661a02 100644
--- a/src/hello-world/02.00.UART.md
+++ b/src/hello-world/02.00.UART.md
@@ -18,8 +18,8 @@ The micro:bit allows us to transmit and receive this serial communication over U
 
 To read and write to the serial bus from your computer, you will need to configure your tooling:
 
-- [*nix](02.01.NIX.html)
-- [Windows](02.02.WINDOWS.html)
+- [*nix](../hello-world/02.01.NIX.html)
+- [Windows](../hello-world/02.02.WINDOWS.html)
 
 ## Code